ChemistryThe decomposition of hydrogen iodide on a gold surface at 150 oC HI(g) ½ H2(g) + ½ I2(g) is zero order in HI. In one experiment, when the initial concentration of HI was 0.206 M, the concentration of HI dropped to 3.71E-2 M after 898 seconds had passed. Based on ...
March 22, 2014

ChemistryThe decomposition of hydrogen iodide on a gold surface at 150 oC HI(g) ½ H2(g) + ½ I2(g) is zero order in HI with a rate constant of 1.20E-4 Ms-1. If the initial concentration of HI is 0.575 M, the concentration of HI will be 0.116 M after how many seconds have ...
March 22, 2014

ChemistryThe decomposition of hydrogen iodide on a gold surface at 150 oC HI(g) ½ H2(g) + ½ I2(g) is zero order in HI with a rate constant of 1.20E-4 Ms-1. If the initial concentration of HI is 0.575 M, the concentration of HI will be 0.116 M after seconds have passed.
March 22, 2014

Chemistry 2ethyl acetate + water ---> ethyl alcohol + acetic acid Once stoppered and allowed to reach equilibrium again. It will be in the reverse direction ethyl alcohol will react with acetic acid to form water and ethyl acetate
August 3, 2012

diffirential calculusa builder intends to construct a storage shed having a volume of 900ft^3, a flat roof and a rectangular base whose width is three-fourths the length. the cost per square foot of the materials is 4000.00 for the floor,6000.00 for the sides and 3000.00 for the roof. what ...
September 25, 2011

diffirential calculustwo points are moving horizontally in space at different heights above the earth. show that the angle of elevation of the line joining them is greater when the distance between them is least.
September 25, 2011

diffirential calculusconsidering the area of a circular ring as a increment of area of a circle, find approximately the area of a ring whose inner and outer radii are 3 inches and 3.02 inches, respectively.
September 25, 2011

diffirential calculus a pole 27ft long is carried horizontally along a corridor 8ft wide and into a second corridor at right angles to the first. how wide must the secon corridor be?
September 25, 2011

physicsThe magnetic field shown in the figure decreases from 1.0 T to 0.4 T in 1.2 s. A 6.0 cm diameter loop with a resistance of 0.010 W is perpendicular to the field. a. Find the average emf induced in the coil during this time. b. What is the size and direction of the current ...
September 17, 2011

physicsThe coil of the ac generator rotates at a frequency of f =60.0 Hz and develops an emf of 120 V (rms). The coil has an area of A = 3.0 x 10 -3 m 2 and consists of N = 500 turns. a. Find the magnitude of the magnetic field in which the coil rotates. b. If the total resistance of...
September 17, 2011

physicsThe figure above shows a top view of a bar that can slide without friction. The resistor is 6.00 Ω and a 2.50 T magnetic field is directed perpendicularly downward, into the paper. Let l=1.20 m. a. Calculate the applied force required to move the bar to the right at a ...
September 17, 2011

physicsA coil of wire consists of 20 turns, or loops, each of which has an area of 1.5 x 10-3 m 2. A magnetic field is perpendicular to the surface of each loop at all times, so that Ø = Øo = 0°. At time to = 0s, the magnitude of the field at the location of the ...
September 17, 2011

PHYSICA square wire loop 10.0 cm on each side carries a clockwise current of 15.0 A. Find the magnitude and direction of the magnetic field B at its center due to the four 1.20 mm wire segments at the midpoint of each side?
September 6, 2011

PHYSICSA wire carrying a 28.0 A current bends through a right angle. Consider 2.00 mm segments of wire, each 3.00 cm from the bend (see fig). Find magnitude and direction of the magnetic field these two segments produce at point P, which is midway between them.
September 6, 2011

PHYSICSA square wire loop 10.0 cm on each side carries a clockwise current of 15.0 A. Find the magnitude and direction of the magnetic field B at its center due to the four 1.20 mm wire segments at the midpoint of each side?
September 3, 2011

PHYSICSA square wire loop 10.0 cm on each side carries a clockwise current of 15.0 A. Find the magnitude and direction of the magnetic field B at its center due to the four 1.20 mm wire segments at the midpoint of each side?
September 3, 2011

physicsA wire carrying a 28.0 A current bends through a right angle. Consider 2.00 mm segments of wire, each 3.00 cm from the bend (see fig). Find magnitude and direction of the magnetic field these two segments produce at point P, which is midway between them.
September 3, 2011

PHYSICWhat current is required in the winding of a long solenoid that has 1000 turns uniformly distributed over a length of 0.4 m, to produce at the center of the solenoid a magnetic field of magnitude 1.0 x 10 -4 T?
September 3, 2011

PHYSICWhat current is required in the winding of a long solenoid that has 1000 turns uniformly distributed over a length of 0.4 m, to produce at the center of the solenoid a magnetic field of magnitude 1.0 x 10 -4 T?
September 3, 2011

PHYSISCTwo parallel, straight wires that are very long are separated by a distance of 0.065 m and carry currents of I1 =15 A and I2 =7.0A. Find the magnitude and direction of the force that the magnetic field of wire 1 applies to a 1.5-m section of wire 2 when the currents have ...
September 3, 2011

PHYSICSa. A 25 nC particle and a  7 nC particle is interacting with each other at a certain distance. Find the force between the two charges @ 3.0 cm and 1.0 cm Calculate and draw each of the particles electric fields. Calculate the electric potential values of the two ...
August 18, 2011

physicsA person with skin area 2 m2 and 0.97 radiation efficiency is at rest and has a skin temperature of 28 C in an environment with a uniform temperature of 22 C. Calculate the heat loss rate if the skin temperature is raised by 8 C by vigorous exercise.
August 18, 2011

physicsA person with skin area 2 m2 and 0.97 radiation efficiency is at rest and has a skin temperature of 28 C in an environment with a uniform temperature of 22 C. Calculate the heat loss rate if the skin temperature is raised by 8 C by vigorous exercise.
August 18, 2011

physicsa. A person with skin area 2 m2 and 0.97 radiation efficiency is at rest and has a skin temperature of 28 C in an environment with a uniform temperature of 22 C Calculate the heat loss rate in watts
August 18, 2011

physicsa. A person with skin area 2 m2 and 0.97 radiation efficiency is at rest and has a skin temperature of 28 C in an environment with a uniform temperature of 22 C Calculate the heat loss rate in watts
August 18, 2011

physicsA person with skin area 2 m2 and 0.97 radiation efficiency is at rest and has a skin temperature of 28 C in an environment with a uniform temperature of 22 C. Calculate the heat loss rate if the skin temperature is raised by 8 C by vigorous exercise.
August 18, 2011

PHYSICSA person with skin area 2 m2 and 0.97 radiation efficiency is at rest and has a skin temperature of 28 C in an environment with a uniform temperature of 22 C .Calculate the heat loss rate in watts
August 18, 2011

PHYSICSA person with skin area 2 m2 and 0.97 radiation efficiency is at rest and has a skin temperature of 28 C in an environment with a uniform temperature of 22 C .Calculate the heat loss rate in watts
August 18, 2011

SCIENCEa.A person with skin area of 3 m2 is nude in a room of still air at 22 C. i.Calculate the rate of conduction of heat loss in watts if the skin temperature is 28 C at a distance of 5 cm.
August 18, 2011

PHYSICSa.A person with skin area of 3 m2 is nude in a room of still air at 22 C. i.Calculate the rate of conduction of heat loss in watts if the skin temperature is 28 C at a distance of 5 cm.
August 18, 2011

PHYSICSA Carnot type engine has a reservoir of 1000 K with an efficiency of 50%. Find the temperature of the sink.
August 18, 2011

SCIENCEa. An engine has a reservoir of 8000 J and has a sink of 1000 J.i. Find the work generated by the engine.
August 18, 2011